How many Nationalities?

"Eastern European" could mean almost any skin tone from translucent white Baltics to mocha Caucasians. White Russians use Кавказ (Caucasian) as a term of abuse for any darker skinned people, somewhat in the way that Paki is used by British racists, without too much regard to geographical accuracy.

Although you are officially right, ignorants in this country seem to think, that "Eastern European" (whatever it fucking means, as the term usually describes people from Central Europe - Poles, Lithuanians, Latvian, Czechs, Slovakians and Hungarians) equals Bosnian or Romanian Roma Gypsies. It's a Daily Mail remix.